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Metra

Metra 70-1787 Amp Integration Harness for Audi Porsche Volkswagen 1993-2010

Metra 70-1787 Amp Integration Harness for Audi Porsche Volkswagen 1993-2010

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Review the application and system requirements

Confirm the size, power, connections, and included or separately required parts described on this page.

Metra 70-1787 is a factory amplifier integration wiring harness for select Audi, Land Rover, Porsche, and Volkswagen vehicles from 1993-2010. It is designed to retain compatible factory amplified systems while providing aftermarket radio wiring connections.

At a Glance

  • Factory amplifier integration harness for select Audi, Porsche, Volkswagen, and Land Rover vehicles
  • Designed for models with factory amplifiers or Bose systems
  • Includes a 20-way connector and RCA plugs
  • Uses the power-wire side of the 70-1784 harness; front speaker output only on some models
  • No cutting of factory radio connectors is required

System / Wiring Notes

  • For compatible factory amplified or Bose-equipped applications only
  • Front speaker output only on some applications per manufacturer notes
  • Additional antenna adapter, dash kit, or integration interface may be required
  • Verify factory audio system before installation

Exact Vehicle Compatibility

Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.

Make Model Years Factory Equipment / Qualifier
Audi A4 1996-1997 Factory amplified audio system
Audi A4 1998-1999 Factory amplified audio system
Audi A4 2000-2005 With Concert radio; Factory amplified audio system
Audi A4, S4 2000-2001 With Symphony radio; Factory amplified audio system
Audi A6 1998-1999 Factory amplified audio system
Audi A6 2000-2001 Factory amplified audio system
Audi A8 1997-1999 Factory amplified audio system
Audi A8, S8 2000-2003 Factory amplified audio system
Audi allroad quattro 2001-2003 Factory amplified audio system
Audi TT 2000-2001 Factory amplified audio system
Porsche 911 1999-2001 996; With factory navigation; Factory amplified audio system
Porsche 911 1999-2001 996; Without factory navigation; Factory amplified audio system
Porsche Boxter 1997-2002 986; Without factory navigation; Factory amplified audio system
Volkswagen Beetle 1998 Factory amplified audio system; Bose factory amplifier only.
Volkswagen Golf 1986-1993 Factory amplified audio system; Bose factory amplifier only.
Volkswagen Golf 1994-1997 Factory amplified audio system; Bose factory amplifier only.
Volkswagen Jetta 1993-1997 Factory amplified audio system; Bose factory amplifier only.

Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.

Installation Notes

  • Confirm exact vehicle fitment, factory audio system, and radio connector before installation
  • Additional parts such as a dash kit, antenna adapter, steering wheel control interface, or data interface may be required for a complete installation
  • Professional installation is recommended for best results
  • Check current manufacturer instructions and vehicle application data before installation

What’s in the Box

  • Metra 70-1787 amplifier integration harness

Technical Specifications

  • Brand: Metra
  • Model: 70-1787
  • Product Type: Amplifier integration harness
  • Application: Select Audi, Land Rover, Porsche, and Volkswagen aftermarket radio installations with factory amplifier integration
  • Compatibility Type: Vehicle-specific
  • Connection Type: 20-way connector with RCA plugs
  • Factory System: Select factory amplifier or Bose systems
  • Related Harness Note: Uses power-wire side of Metra 70-1784

Identifiers & Packaging

  • MPN: 70-1787
  • UPC: 086429118472
  • Sold As: Each
  • Included Components: Amplifier integration harness

Why Buy From MCOR Automotive

  • Authorized retailer for the brands we sell
  • Specialists in vehicle audio integration, radio replacement parts, and installation accessories
  • 22+ years of professional automotive electronics experience
  • Expert support for compatibility verification and proper setup
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